Figure: © 2016 FlipSwitch; Person:vberla/Shutterstock
Which of the following choices correctly describes the input force and the output force?
O The input force is increased compared to the output force and as a result the ball must be
pushed a longer distance
O The input force is reduced compared to the output force and as a result the ball must be pushed
a shorter distance
The input force is reduced compared to the output force and as a result the ball must be pushed
a longer distance
The input force is increased compared to the output force and as a result the ball must be
pushed a shorter distance
Answers: 3
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Many machines- including inclined planes such as ramps- increase the strength of the force put into the machine but decrease the distance over which the force is applied. true or false
Answers: 1
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Agymnast dismounts off the uneven bars in a tuck position with a radius of 0.3m (assume she is a solid sphere) and an angular velocity of 2rev/s. during the dismount she stretches out into the straight position, with a length of 1.5m, (assume she is a uniform rod through the center) for her landing. the gymnast has a mass of 50kg. what is her angular velocity in the straight position?
Answers: 3
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What do elements in a family tend to share. a.) similar periods b.) similar groups c.) similar atomic symbols d.) similar chemical properties and characteristics
Answers: 2
Figure: © 2016 FlipSwitch; Person:vberla/Shutterstock
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